The Probert Encyclopaedia of Warfare

SA-2

The V750KV (known in the West as SA-2) (NATO codename Guideline) was a Soviet two-stage surface-to-air missile introduced in the 1950s and first seen at the 1957 Soviet military parade. The SA-2 had a range of 40 km, an effective ceiling of 18300 meters and flew at a speed of Mach 3.5.
Research SA-2